Home / 11,980.96-17,959.65-4,479.01

Finding the Fourth Proportional to 11,980.96, 17,959.65 and 4,479.01

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Solution

The fourth proportional to 11,980.96, 17,959.65 and 4,479.01 is: 6,714.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,980.96 : 17,959.65 = 4,479.01 : x
  2. Step 2: Convert to fraction form
    11,980.96/17,959.65 = 4,479.01/x
  3. Step 3: Cross multiply
    11,980.96x = 17,959.65 × 4,479.01
  4. Step 4: Simplify right side
    11,980.96x = 80,441,451.95
  5. Step 5: Solve for x
    x = 80,441,451.95/11,980.96
  6. Step 6: Final answer
    x = 6,714.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.